There is a good reason that they put things like the X-Games on TV, it's because only a few people can do it. Jumping on a skateboard, snowmobile or a bike is hard and takes a lot of practice.
That's why it makes complete sense that some random girl would think it's a great idea to try. I mean she probably just drank a whole Mt Dew, so she is feeling pretty extreme. What's the worst thing that could happen?